978827948 has 24 divisors (see below), whose sum is σ = 1964589312. Its totient is φ = 418011984.

The previous prime is 978827929. The next prime is 978827953. The reversal of 978827948 is 849728879.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 53840 + ... + 69687.

It is an arithmetic number, because the mean of its divisors is an integer number (81857888).

Almost surely, 2^978827948 is an apocalyptic number.

It is an amenable number.

978827948 is an abundant number, since it is smaller than the sum of its proper divisors (985761364).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

978827948 is a wasteful number, since it uses less digits than its factorization.

978827948 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 123821 (or 123819 counting only the distinct ones).

The product of its digits is 16257024, while the sum is 62.

The square root of 978827948 is about 31286.2261706330. The cubic root of 978827948 is about 992.8922489025.

The spelling of 978827948 in words is "nine hundred seventy-eight million, eight hundred twenty-seven thousand, nine hundred forty-eight".